CN107667497A - Method and apparatus for transmitting efficient rate control information - Google Patents

Method and apparatus for transmitting efficient rate control information Download PDF

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Publication number
CN107667497A
CN107667497A CN201680032131.5A CN201680032131A CN107667497A CN 107667497 A CN107667497 A CN 107667497A CN 201680032131 A CN201680032131 A CN 201680032131A CN 107667497 A CN107667497 A CN 107667497A
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China
Prior art keywords
field
control
fields
frame
information
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Granted
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CN201680032131.5A
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Chinese (zh)
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CN107667497B (en
Inventor
A·阿斯特尔贾迪
S·梅林
G·谢里安
G·D·巴里亚克
G·丁
Q·田
周彦
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Qualcomm Inc
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Qualcomm Inc
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Abstract

Disclose method, equipment and the computer program product for the business information signaling in cordless communication network.In an aspect, a kind of method of cordless communication network is disclosed.Methods described includes：One or more control fields are selected to be included in frame from the control field of variable number.Methods described also includes：Generation includes the frame of the control field of selected quantity, each control field includes the end of control field, and the end of the control field stores the end to the control field of selected quantity or the designator that another control field is indicated in the frame be present.Methods described also includes sending the frame.

Description

Method and apparatus for transmitting efficient rate control information
Technical field
Present invention relates generally to radio communication, and more particularly relate to transmit system, the method for control information And equipment.
Background technology
In many telecommunication systems, communication network is used to disappear in the exchanged between equipment being spatially separated from of some interactions Breath.Network can be classified according to geographic range (it can be such as metropolitan area, local or individual domain).Can be by as Network is respectively designated as wide area network (WAN), Metropolitan Area Network (MAN) (MAN), LAN (LAN) or Personal Area Network (PAN).Network always according to for Exchange/route technology (for example, circuit switching contrast packet switch) of interconnect various network node and equipment, the thing for transmission The type (for example, wired contrast is wireless) for managing medium and the set communication protocol that uses are (for example, internet protocol group, SONET (synchronous optical network), Ethernet etc.).
When network element is mobile and when therefore having dynamic connection requirement, or if the network architecture is with oneself Tissue rather than fixed topology are come what is formed, then wireless network is often preferable.Wireless network is used without guidance propagating mode Invisible physical medium under formula (it uses the electromagnetic wave in the frequency bands such as wireless, microwave, infrared, light).When with fixed wired network When network compares, wireless network has advantageously facilitated user mobility and rapid field deployment.
Equipment in wireless network can transmission/receive information each other.Information can include packet, in some respects In, packet can be referred to as data cell.In certain aspects, equipment can send control information, be set to advantageously promote Communication between standby.However, in certain aspects, such information can increase expense and reduce efficiency.Accordingly, there exist to In the demand of the improved method and apparatus of information as transmission between devices.
The content of the invention
System, method, equipment and computer program product discussed herein are respectively provided with some aspects, and it does not have independent one Aspect is that its desired properties is individually responsible for.In the situation for not limiting the scope of the present invention as expressed by claims below Under, some features are discussed briefly below.After the discussion is considered, and particularly reading entitled " specific reality Apply mode " chapters and sections after, it will be understood that how the advantageous characteristic of the present invention allows effective use to wireless communication medium.
In an aspect, a kind of method of radio communication is disclosed.Methods described includes：From the control word of variable number One or more control fields are selected to be included in frame in section.Methods described also includes：Generation includes selected quantity The frame of control field, each control field include the end of control field, and the end of the control field is stored to selected The designator that another control field is indicated in the frame be present in the end of the control field for the quantity selected.It is described Method also includes sending the frame.
In another aspect, there is provided a kind of wireless device for being communicated in the wireless network.It is described wireless Equipment includes processor, and the processor is configured as selecting one or more control fields from the control field of variable number To be included in frame, the processor is additionally configured to the frame that generation includes the control field of selected quantity, each Control field includes the end of control field, and the end of the control field stores the knot to the control field of selected quantity The designator that another control field is indicated in the frame be present in beam.The wireless device also includes emitter, The emitter is configured as sending the frame.
The some aspects of present disclosure, which are related to, provides a kind of wireless device for being communicated in the wireless network.Institute Stating wireless device includes：For selecting one or more control fields to be included in frame from the control field of variable number Unit.The wireless device also includes：Include the unit of the frame of the control field of selected quantity for generation, each Control field includes the end of control field, and the end of the control field stores the knot to the control field of selected quantity The designator that another control field is indicated in the frame be present in beam.The wireless device also includes：For sending out Send the unit of the frame.
The other side of present disclosure is related to a kind of non-transitory computer storage for storing executable program instructions Device, the executable program instructions instruct Wireless Telecom Equipment to perform a kind of method, and methods described includes：From variable number One or more control fields are selected to be included in frame in control field.Methods described also includes sending the frame.
Brief description of the drawings
Fig. 1 shows the example of the wireless communication system for the aspect that can use present disclosure wherein.
Fig. 2 shows the block diagram of the access point 110 and two user terminals 120m and 120x in mimo system.
Fig. 3 shows the utilizable various assemblies in the wireless device that can be used in wireless communication system.
Fig. 4 shows the figure of exemplary physical layer convergence process (PLCP) protocol Data Unit (PPDU) frame.
Fig. 5 shows the figure of medium access control (MAC) frame.
Fig. 6 is the figure for the exemplary embodiment for showing high efficiency (HE) control field.
Fig. 7 A are the figures for the exemplary mac frame for including HE control fields (it includes multiple HE control fields).
Fig. 7 B are the figures for another the exemplary mac frame for including HE control fields (it includes multiple HE control fields).
Fig. 8 A are the charts of the example values of the control id field of HE control fields.
Fig. 8 B are the charts of the example values of the control id field of short-form HE control fields.
Fig. 9 is the control of HE control fields when controlling id field instruction block confirmation request (BAR) or block confirms (BA) information The figure of Information Field Format processed.
Figure 10 is to show the time series chart that the example frame in wireless communication system 100 exchanges.
Figure 11 is when control id field instruction channel quality information (CQI) or modulation and encoding scheme (MCS) feedback information When, the figure of the control information field format of HE control fields.
Figure 12 is the control information field format when controlling id field to indicate enhanced PS- polls (ePS- polls) information Figure.
Figure 13 is the figure of control information field format when controlling id field instruction CRC information.
Figure 14 is the figure of control information field format when controlling id field instruction service quality (QoS) information.
Figure 15 is the figure of control information field format when controlling id field instruction triggering information.
Figure 16 is to show the time series chart that another example frame in wireless communication system 100 exchanges.
Figure 17 A are the figures of exemplary PPDU forms.
Figure 17 B are the figures for the HE control fields that the SIG-B fields of PPDU physical layer (PHY) header include.
Figure 18 is the figure for the A-MPDU for including multiple A-MPDU subframes.
Figure 19 is some aspects according to present disclosure, the flow chart for the illustrative methods of radio communication.
Figure 20 is the chart for the other examples value for controlling id field and control information field.
Figure 21 A are according to one embodiment, the figure of the example format of control information field.
Figure 21 B are according to one embodiment, the figure of the example format of control information field.
Figure 22 is the figure for the example format that id field and control information field are controlled according to one embodiment.
Figure 23 is according to one embodiment, the figure of the example format of control information field.
Figure 24 is the example frame for including validating that (ACK) message exchange between devices.
Figure 25 is the exchange of the example frame including block confirmation request (BAR) message between devices.
Figure 26 is to confirm the figure of the example format of (BA) frame according to one embodiment, block.
Figure 27 is according to one embodiment, the figure of another example format of BA frames.
Embodiment
The various aspects of the systems, devices and methods of novelty have been described more fully below with reference to accompanying drawing.It is however, disclosed Teaching can embody in many different forms, and should not be construed as limited to appoint through what present disclosure was presented What specific structure or function.More specifically, there is provided these aspects make it that present disclosure will be thorough and complete, and Will scope of the present disclosure be fully conveyed to those skilled in the art.Based on teaching herein, those skilled in the art should , it is realized that scope of the present disclosure any aspect for being intended to novel systems, devices and methods disclosed herein, nothing It is independently to realize or realized in combination with any other aspect of the present invention by this aspect.For example, use this paper institutes Any amount of aspect illustrated can realize a kind of device or can implement a kind of method.In addition, the scope of the present invention is intended to Cover using other structures, function or explained except the various aspects of the invention described herein or different from this paper The 26S Proteasome Structure and Function for the various aspects of the invention stated is come such device or method for implementing.It is it should be appreciated that disclosed herein Any aspect can by claim one or more member usually embody.
While characterized as particular aspects, but many modifications in terms of these and displacement fall scope of the present disclosure Within.It is specific scope of the present disclosure being not intended to be limited to although refer to some benefits and advantage of preferred aspect Benefit, purposes or target.More precisely, it is intended to be widely applicable for different wireless technologys in terms of present disclosure, is It is under unified central planning put, network and host-host protocol, some of them by means of example in accompanying drawing and below to the description of preferred aspect in say It is bright.The detailed description and the accompanying drawings are merely illustrative present disclosure and non-limiting present disclosure, and scope of the present disclosure by institute Attached claim and its equivalent item define.
Radio network technique can include various types of WLANs (WLAN).WLAN is used for making extensively Procotol by neighbouring apparatus interconnection together.Various aspects described herein can apply to any communication standard (such as WiFi), or more generally, any member that can apply in the wireless protocol families of IEEE 802.11.
In certain aspects, can be communicated according to use OFDM (OFDM), DSSS (DSSS), The combination of OFDM and DSSS communications or 802.11 agreements of other schemes send wireless signal.
In some implementations, WLAN can include the various equipment as the component for accessing wireless network.For example, can be with There is two kinds of equipment：Access point (" AP ") and client (also referred to as station (commonly known as " STA ")).Generally, AP fills When WLAN hub or base station and STA serve as WLAN user.For example, STA can be laptop computer, individual digital Assistant (PDA), mobile phone etc..In one example, STA meets radio chains via WiFi (for example, the agreements of IEEE 802.11) Road is connected to AP to acquire the general connection of internet or other wide area networks.In some implementations, STA can also by with Make AP.
Access point (" AP ") can also include, be implemented as or be referred to as node B, radio network controller (" RNC "), Evolved node B, base station controller (" BSC "), base station transceiver (" BTS "), base station (" BS "), transceiver function unit (" TF "), wireless router, transceiver or certain other term.
Stand (" STA ") can also include, be implemented as or be referred to as access terminal (" AT "), subscriber station, Yong Hudan Member, movement station, distant station, remote terminal, user terminal, user agent, user's set, user equipment or certain other term. In some implementations, access terminal can include cell phone, wireless phone, Session initiation Protocol (" SIP ") phone, nothing Line local loop (" WLL ") is stood, personal digital assistant (" PDA "), have wireless connection capability handheld device or certain connection To other appropriate processing equipments of radio modem.Therefore, one or more aspects taught herein can be by simultaneously Enter phone (for example, cell phone or smart phone), computer (for example, laptop computer), portable communication device, wear Formula earphone, portable computing device (for example, personal digital assistant), amusement equipment are (for example, music or video equipment or satellite Radio device), game station or system, global positioning system equipment or any be configured as being led to via wireless medium Other appropriate equipment of letter.
Fig. 1 shows multiple access multiple-input and multiple-output (MIMO) system 100 with access point and user terminal.In order to simple For the sake of, an access point 110 is illustrate only in Fig. 1.Access point be typically the fixed station that is communicated with user terminal and It is also referred to as base station or uses certain other term.User terminal or STA can be fixed or movement and may be used also To be referred to as movement station or wireless device or use certain other term.Access point 110 can be in any given time descending Communicated on link and up-link with one or more user terminals 120.Downlink (that is, forward link) be from access point to The communication link of user terminal, and up-link (that is, reverse link) is the communication link from user terminal to access point.User Terminal can also be communicated with another user terminal with Peer.System controller 130 is coupled to access point and is Access point, which provides, to be coordinated and controls.
Although the part of disclosure below will describe user terminal that can be via space division multiple access (SDMA) to communicate 120, but for certain aspects, user terminal 120 can also include some user terminals for not supporting SDMA.Therefore, for Such aspect, AP 110 can be configured as communicating with both SDMA and non-SDMA user terminals.This method can easily permit Perhaps do not support the user terminal (" tradition " stands) of SDMA older version to keep being deployed in enterprise, extend its useful life longevity, together When allow newer SDMA user terminals are introduced in the case where such as thinking fit.
System 100 uses multiple transmission antennas and multiple reception antennas to enter line number on the downlink and uplink According to transmission.Access point 110 is equipped with NapIndividual antenna and for downlink transmission represent multi input (MI) and for Multi output (MO) is represented for up-link transmission.One group of K selected user terminal 120 is jointly for downlink transmission For represent multi output and for up-link transmission for represent multi input.For pure SDMA, if the number of K user terminal It is re-used according to symbol stream not over certain means in code, frequency or on the time, then is desired to have Nap≥K≥1.If it can make With TDMA technologies, in the cdma case using different code channels, in case of the ofdm using disjoint sets of subbands etc. To be multiplexed to data symbol stream, then K can be more than Nap.Each selected user terminal can be sent to access point specific to The data of user and/or from access point receive specific to user data.In general, each selected user terminal can be by Equipped with one or more antenna (that is, Nut≥1).K selected user terminals can have the antenna of identical quantity, Huo Zheyi Individual or multiple user terminals can have the antenna of varying number.
SDMA systems 100 can be time division duplex (TDD) system or FDD (FDD) system.For TDD system, under Line link and up-link share identical frequency band.For FDD system, downlink and up-link use different frequency bands. Mimo system 100 can also be transmitted using single carrier wave or multiple carrier waves.Each user terminal can be equipped with list Individual antenna (for example, in order to keep cost to decline) or multiple antennas (for example, in the case where extra cost can be supported).If By the way that transmission/reception is divided into different time-gap, (wherein, each time slot can be assigned to different user end to user terminal 120 120) same frequency channel is shared in end, then system 100 can also be TDMA system.
Fig. 2 shows the block diagram of the access point 110 and two user terminals 120m and 120x in mimo system 100.Connect Access point 110 is equipped with NtIndividual antenna 224a to 224ap.User terminal 120m is equipped with Nut,mIndividual antenna 252ma to 252mu, And user terminal 120x is equipped with Nut,xIndividual antenna 252xa to 252xu.Access point 110 is hair for downlink Entity is sent, and is receiving entity for up-link.User terminal 120 is sending entity for up-link, and It is receiving entity for downlink.As it is used herein, " sending entity " is can to send number via wireless channel According to independent operation device or equipment, and " receiving entity " be can via wireless channel receive data independent operation dress Put or equipment.In the following description, subscript " dn " sign downlink, subscript " up " sign up-link, NupIndividual user terminal It is chosen to transmit while progress in up-link, and NdnIndividual user terminal is chosen to transmit while progress on downlink, NupIt can be equal to or N can be not equal todn, and NupAnd NdnIt can be quiescent value or can change with each scheduling interval. Beam steering or certain other spatial processing technique can be used at access point 110 and/or user terminal 120.
On uplink, at each user terminal 120 for being chosen to carry out up-link transmission, TX data processors 288 receive the business datum from data source 286 and the control data from controller 280.TX data processors 288 be based on For the associated coding of the speed selected by the user terminal and modulation scheme come handle (for example, coding, interweave and modulation) pin Business datum to the user terminal and provide data symbol stream.TX spatial processors 290 perform sky to the data symbol stream Between processing and to Nut,mIndividual antenna provides Nut,mIndividual transmission symbol stream.Each transmitter unit (TMTR) 254 receives and handles (example Such as, conversion is to simulation, amplification, filtering and up-conversion) respective transmission symbol stream to be to generate uplink signal.Nut,mIndividual hair Penetrate machine unit 254 and N is providedut,mIndividual uplink signal is to carry out from Nut,mThe transmission of individual antenna 252, for example, to access point 110 Send.
NupIndividual user terminal can be scheduled to carry out simultaneous transmission on uplink.It is each in these user terminals It is individual spatial manipulation to be performed to its respective data symbol stream and send its respective hair to access point 110 on uplink Send symbol stream set.
At access point 110, NapIndividual antenna 224a to 224ap is from all N being transmitted on uplinkupIndividual use Family terminal receives uplink signal.Each antenna 224 provides the letter received to respective receiver unit (RCVR) 222 Number.What each execution of receiver unit 222 processing complementary with the processing performed by transmitter unit 254 and offer received Symbol stream.RX spatial processors 240 are to from NapThe N of individual receiver unit 222apThe individual symbol stream received performs receiver Spatial manipulation and provide NupThe individual uplink data symbols stream recovered.Receiver space processing can be according to channel phase Matrix inversion (CCMI), least mean-square error (MMSE), soft rot bacteria (SIC) or certain other technology are closed to perform.Often The individual uplink data symbols stream that recovers is the estimation of the data symbol stream to being sent by corresponding user terminal.RX data Processor 242 according to used in the uplink data symbols stream for each recovering speed come handle (for example, demodulation, Deinterleaving and decoding) stream to be to obtain decoded data.It can be provided for the decoded data of each user terminal Controller 230 is stored and/or is supplied to data sink 244 for further processing.
On the uplink, at access point 110, TX data processors 210 receive being directed to from data source 208 and adjusted Degree carries out the N of downlink transmissiondnThe business datum of individual user terminal, the control data from controller 230 and it is also possible to There are the other data for carrying out child scheduler 234.Various types of data can be sent on different transport channels.TX data processings The speed that device 210 is based upon each user terminal selecting is directed to the user terminal to handle (for example, coding, intertexture and modulation) Business datum.TX data processors 210 are NdnIndividual user terminal provides NdnIndividual down link data symbol stream.TX spatial manipulations Device 220 is to NdnIndividual down link data symbol stream performs spatial manipulation (such as precoding or beam forming) and is NapIndividual day Line provides NapIndividual transmission symbol stream.Each transmitter unit 222 receives and handles respective transmission symbol stream to generate descending chain Road signal.NapIndividual transmitter unit 222 can provide NapIndividual down link signal is to carry out from NapThe transmission of individual antenna 224, example Such as, sent to user terminal 120.
At each user terminal 120, Nut,mIndividual antenna 252 receives N from access point 110apIndividual down link signal.Each The symbol stream that receiver unit 254 handles the signal received from associated antenna 252 and offer receives.RX is empty Between processor 260 to from Nut,mThe N of individual receiver unit 254ut,mThe individual symbol stream received performs receiver space processing simultaneously And provide the down link data symbol stream for the user terminal 120 recovered.Receiver space processing can be basis CCMI, MMSE or certain other technology perform.RX data processors 270 handle (for example, demodulation, deinterleaving and decoding) institute The down link data symbol stream recovered is directed to the decoded data of the user terminal to obtain.
At each user terminal 120, channel estimator 278 estimates downlink channel response and provides downlink Channel estimation, it can include channel gain estimation, SNR estimations, noise variance etc..Similarly, in the estimation of channel estimator 228 Downlink channels respond and provide uplink channel estimation.The controller 280 of each user terminal is typically based on the user The downlink channel response matrix H of terminaldn,mTo derive the spatial filter matrices of the user terminal.Controller 230 is based on having Imitate uplink channel responses matrix Hup,effTo derive the spatial filter matrices of access point.The controller 280 of each user terminal Can be to the send feedback information of access point 110 (for example, downlink and/or up-link eigenvector, characteristic value, SNR estimate Deng).Controller 230 and 280 can also control the behaviour of the various processing units at access point 110 and at user terminal 120 respectively Make.
Fig. 3 shows the various assemblies that can be used in wireless communication system 100 in adoptable wireless device 302. Wireless device 302 is the example that can be configured as realizing the equipment of various methods described herein.Wireless device 302 can be with Realize access point 110 or user terminal 120.
Wireless device 302 can include the processor 304 that the operation to wireless device 302 is controlled.Processor 304 CPU (CPU) can be referred to as.It may include both read-only storage (ROM) and random access memory (RAM) Memory 306 provides instruction and data to processor 304.The a part of of memory 306 can also deposit including non-volatile random Access to memory (NVRAM).Processor 304 can the programmed instruction based on the memory storage of memory 306 transported come execution logic and arithmetic Calculate.Instruction in memory 306 can be executable to realize approach described herein.
The processing system or the group of processing system that processor 304 can be realized using one or more processors Part.One or more processors can be can using general purpose microprocessor, microcontroller, digital signal processor (DSP), scene Program gate array (FPGA), PLD (PLD), controller, state machine, gate control logic unit, discrete hardware components, Dedicated hardware finite state machine or can perform calculating to information or other manipulations any other appropriate entity it is any Combine to realize.
Processing system can also include being used for the machine readable media for storing software.No matter be known as software, firmware, in Between part, microcode, hardware description language or other terms, software should be broadly interpreted as meaning any kind of instruction. Instruction can include code (for example, with source code format, binary code form, executable code format or any other suitable When code format).Instruction causes processing system to perform various work(described herein when being executed by one or more processors Energy.
Wireless device 302 can also include housing 308, and housing 308 can include emitter 310 and receiver 312 to permit Perhaps sending and receiving for data is carried out between wireless device 302 and remote site.Emitter 310 and receiver 312 can be by It is combined into transceiver 314.Single or multiple transceiver antennas 316 can be attached to housing 308 and be electrically coupled to transceiver 314. Wireless device 302 can also include the multiple emitters of (not shown), multiple receivers and multiple transceivers.
Wireless device 302 can also include signal detector 318, and signal detector 318 can be used for trying hard to detect and measuring Change the level of the signal received by receiver 314.Signal detector 318 can detect such as gross energy, per symbol every subcarrier Energy, power spectral density and other signals etc signal.Wireless device 302 can also include the number for process signal Word signal processor (DSP) 320.
Each component of wireless device 302 can be coupled by bus system 322, and bus system 322 removes data Power bus, control signal bus and status signal bus in addition can also be included outside bus.
In certain aspects, extensive control information can be exchanged between STA and/or AP using 802.11 agreements.Example Such as, STA can with exchange buffering state (BS) feedback, channel quality information feedback, resource allocation, economize on electricity (PS) feedback etc., with Just the more efficient communication between wireless device is promoted.Certain in the frame that is exchanged with signal between STA and/or AP can be required Place sends the control information.In certain aspects, including the information into various containers (for example, frame, element, field) can be with Increase design complexities.In addition, the control information is included in the poly- of polytype frame (for example, control, management, data etc.) Medium access control (MAC) MAC expenses can be increased in conjunction.Therefore, a kind of new control field may defined in mac frame It is helpful, preferably to exchange such control information.In this new control field, control field can wrap Include one or more control fields for carrying various control information in one or more mac frames.It is in addition, this new Control field can indicate that the end of one or more control frames and being generated as includes in each control field can Become the information of quantity.
Fig. 4 is the exemplary embodiment for showing physical layer convergence process (PLCP) protocol Data Unit (PPDU) frame 400 Figure.As shown in figure 4, PPDU frames 400 include physical layer (PHY) header 415 and PLCP service data units (PSDU) 480, PSDU 480 includes MAC header field 450, payload data field 460 and Frame Check Sequence (FCS) field 470.PSDU 480 are also referred to as PPDU 400 payload portions 480.PHY headers 415 can be used for the OFDM letters for obtaining input Number, training and synchronous demodulator, and can be delivered with the demodulation of auxiliary payload portion 480.
Fig. 5 is the figure for the exemplary embodiment for showing medium access control (MAC) frame 500.In certain embodiments, Mac frame 500 can include media access control protocol data cell (MPDU) frame.In certain embodiments, mac frame 500 can be with It is corresponding with payload portions 480, as previous with reference to described in Fig. 4.As illustrated, mac frame 500 includes 12 different words Section：Frame control (fc) field 510, duration/mark (dur) field 525, receiver address (a1) field 530, emitter Location (a2) field 535, destination-address (a3) field 540, sequence control (sc) field 545, the 4th address (a4) field 550, Service quality (QoS) control (qc) field 555, high-throughput (HT)/high throughput (VHT) control field 560, frame main body 568 and Frame Check Sequence (FCS) field 470.Some or all of field 510-565 field can form Fig. 4 MAC Header 450.In certain embodiments, the protocol version field of the frame control field 510 of mac frame 500 can be 0 or 1 or be more than 1。
Fig. 6 is the figure for the exemplary embodiment for showing high efficiency (HE) control field 600.Height is shown at the top of Fig. 6 The example format of handling capacity (HT) control field 600.In certain embodiments, HT control fields can be with Fig. 5 HT/VHT Control field 560 is corresponding.As shown in fig. 6, HT control fields 600 are included in high throughput (VHT) field 601, HT controls Between field 602, access level (AC) bind field 603 and reverse authorization (RDG)/more physical layer convergence process protocol data Unit (PPDU) field 604.It is that the expansion of the example format of HT control middle fields 602 regards below HT control fields 600 Figure.In certain aspects, HT control middle field can include link circuit self-adapting control field 610, calibrating position field 611, Calibrating sequence field 612, the first reserved field 613, channel condition information (CSI)/manipulation field 614, HT Empty packets (NDP) advertisement field 615, the second reserved field 616 and discard eligibility designator (DEI) field 617.
The HT controls middle field 602 of expansion in figure 6 is the second example personality of HT control middle fields 602 below Second expansion view of formula 620.In this embodiment, the VHT fields 601 of HT control fields 600 are arranged to 1 value, with instruction HT control fields 600 are configured to the VHT variants of HT control fields 600.As shown in fig. 6, HT control fields form 620 includes VHT fields 601, reserved field 621, modulation and encoding scheme (MCS) request (MRQ) field 622, MCS request sequence identifiers (MSI)/space-time block coding (STBC) field 623, MCS feedback sequence identifier (MFSI)/group identifier lowest bit (GID-L) field 624, MCS feedback (MFB) field 625, GID highests bit (GID-H) field 626, type of coding field 627, Feedback transmitter (Tx) type field 628 and uncalled MFB field 629.
The HT controls middle field 620 of the second expansion in figure 6 is the example format of HT control fields 660 below Deploy view.In this embodiment, the VHT fields 601 of HT control fields 600 are arranged to 1 value, and the second field or bit It is arranged to 1, to indicate that HT control fields 660 are configured to the HE variants of the VHT variants of HT control fields 600.Such as Fig. 6 institutes Show, HE control fields 660 terminate (EOH) field including HE indicator fields 661, control identifier (ID) field 662, HE controls 663 and control information field 664.In certain aspects, HE indicator fields 661 include above-mentioned second field or Fig. 6 Reserved field 621 and indicate whether HT control fields 600 are configured to the HE variants of the VHT variants of HT control fields 600.Example Such as, in certain embodiments, if HE indicator fields 661 are configured to 0, the HT control fields of mac frame 500 are controlled including HT The form of field 600 processed.If HE indicator fields 661 are configured to 1, the HT control fields of mac frame 500 control including HE Field 660.Control id field 662 can include content, type and/or the length of the information included to control information field 664 The instruction of degree.In certain embodiments, control id field 662 can include 1-6 bit.EOH fields or control trailer field 663 can store end to the HE control fields 660 of the selected quantity in mac frame (for example, Fig. 5 mac frame 500) or The designator that another HE control field 660 is indicated in mac frame 500 be present in person.In certain embodiments, EOH fields 663 can include 1-6 bit.
For example, Fig. 7 A are the figures of exemplary mac frame 700, wherein mac frame 700 includes HE control fields 660, HE control words Section 660 includes multiple HE control fields 660.Fig. 7 A are similar with Fig. 5 mac frame 500 and adapt from mac frame 500.For succinct Purpose, only describe the difference between mac frame 500 and 700 herein.As shown in Figure 7 A, positioned at QoS control fields 555 (if In the presence of such field) after HE control fields 660 can include variable-length, this depends on existing HE control fields The type and/or amount for the information that the control information field 664 of quantity and/or each HE control fields 660 includes.In some sides In face, depositing for HE control fields 660 can be indicated in the command field that the frame of QoS mac frames field 555 controls (FC) field In (that is, the existing similar signaling for indicating HT control fields).In certain embodiments, HE control fields 660 and/or each HE The length of the control information field 664 of control field 660 can be restricted to the multiple of two or four byte.As Fig. 7 A enter one Shown in step, HE control fields 660 can be included from any amount of HE control fields 0 to n HE control field 660 660, wherein n is greater than or equal to 1 integer.HE control fields 660 (1-n) can by with shown in Fig. 7 A in a manner of similar side The cascade of formula one by one.In certain embodiments, the VHT fields 601 of last n-1 HE control fields 660 and HE instructions Symbol field 661 can be reused for and/or be replanned for carrying other information or signaling, and this is due to that their value can To be only required for the first HE control fields, so as to which first field is become from the VHT of HT control fields and HT control fields Body makes a distinction.Mac frame 700 also includes having cryptographic block link message authentication code (CBC-MAC) agreement (CCMP) header fields 765 counter mode (CTR).In certain embodiments, one or more HE control fields CCMP/GCMP header fields it Preceding or (if there is no CCMP/GCMP header fields) mac frame (for example, mac frame 500,700) payload (for example, Frame main body 568) before.Include HE control fields for some non-limiting benefits of the HE control fields 660 in mac frame 700 660 forms can be with back compatible, because it is the flexible variant of existing HT control fields 600, the form of HE control fields 660 Can also be compatible forward, because it can be extended for the modification in future, as discussed herein, HE control fields 660 Expense can be reduced by avoiding the polymerization of multiple frames in A-MPDU, HE control fields 660 can increase flexibility, and this is Because it can be delivered can be used for carrying efficient extensive feedback information by peer STA or AP, and provide other benefits.
In the exemplary embodiment, mac frame 700 can include the HE control fields 660 of the individual cascade in five (5), in preceding four (4) In individual HE control fields, EOH fields 663 can be configured to 0 value, another HE control field 660 be present with instruction, the 5th Or the EOH fields 663 in last HE control field 660 can be configured to 1, it is with the 5th HE control fields 660 of instruction The end of mac frame or last HE control field 660 therein.
Fig. 7 B are the figures of exemplary short-form mac frame 799, and wherein mac frame 799 includes HE polymerization controls (HE A- controls) Field 795, HE A- control fields 795 include multiple HE control fields 795.Fig. 7 B are similar with Fig. 7 mac frame 700 and adapt From mac frame 700.For purposes of brevity, the difference between mac frame 700 and 799 is only described herein.As shown in Figure 7 B, HE is controlled Field 795 processed is located at after service identifier (SID) field 790.SID fields 790 can include Fig. 7 A A1 530 or A2 535 fields.As shown in Figure 7 B, HE control fields 795 include control id field 797, reserved field 798, and omit Fig. 7 A's The VHT fields 601 and HE fields 661 of HE control fields 660.In certain aspects, short-form mac frame 799 can have than it The smaller MAC expenses of its mac frame (for example, 6-8 byte), this except polymerization HE control fields (rather than in A-MPDU gather Close MPDU) outside, also reduce MAC expenses.In certain aspects, the first HE control fields in multiple HE control fields 795 795 (for example, 795 (1) shown in Fig. 7 B) can be with having the HE control words of minimum control ID values in id field 797 is controlled Section 795 is corresponding.In certain embodiments, follow-up HE control fields 795 can be come by the Nondecreasing values of control id field 797 Sequence.In certain aspects, the first HE control fields 795 in multiple HE control fields 795 are (for example, shown in Fig. 7 B 795 (1)) can be corresponding equal to 0 HE control fields 795 with the control ID values in id field 797 is controlled.In this embodiment, Follow-up HE control fields 795 can not be the value based on control id field 797 to sort.
In certain aspects, filling field (not shown) can follow last in the HE control fields 795 of polymerization After HE control fields 795 (for example, 795 (n)).Filling field can be included so that the value of the HE control fields 795 of polymerization exists Meet certain length requirement (for example, 30 bits) when being carried in HT control fields (for example, HT control fields 600).One The HE control words of polymerization can be included in by a little aspects, when starting the instruction of (for example, position of filling field) to filling The field of section 795 is (for example, the reserved field 798 or EOH words of one or more of HE control fields 795 HE control fields 795 Section 663) in.In certain aspects, the instruction can also include filling content (for example, sequence of zero, one or other value).At it It aspect in, can be not present indicate and fill can include zero sequence.In certain aspects, filling can be including zero Sequence, and the beginning filled can be by receiving the equipment of HE control fields 795 by following the end in HE control fields 795 The sequence (having the maximum length corresponding with controlling the size of ID values) of generation zero afterwards is come what is determined.In certain aspects, HE control fields 795 are that first and an only HE control field 795 (and have zero in id field 797 is controlled Value), or last HE control field 795 of the nonzero value with control id field 797.
In certain aspects, the bit in frame control field 510 can indicate that controls wrapper form is redefined.Example Such as, any reserved field can serve to indicate that controls wrapper form is redefined.In other side, any control is used The Command field bit of the fc field 510 of frame can indicate HE A- control fields 795 in corresponding control frame be present.
In certain aspects, short-form mac frame 799 can include MAC header part (not shown), the HE control words of polymerization 795 and FCS of section fields 470.In certain embodiments, MAC header part includes fc field 510 and the SID shown in Fig. 7 B Field 790.In certain aspects, short-form mac frame 799 can be referred to as HE A- control frames 799.In certain embodiments, HE A- control frames 799 may be defined as a kind of control frame of new subtype.In other side, HE A- control frames 799 can be with Confirm to be carried in (BA) frame in more STA blocks.It can be good using more STA BA frames to carry HE A- control frames 799, Because it can be generated by AP and non-AP STA.In addition, more STA BA frames can provide one kind sends HE with signal The unified approach of control information, and STA can be enable not sent out with not any restrictions whenever being required and being requested Send necessary HE control information.HE A- control frames 799 can be taken in the trigger frame for triggering MU-UL or MU-DL transmission Band.
As discussed above, content, type and/or the length of the information in control information field 664 can depend on control Id field 662 processed itself or the value that the length field of of HE control fields 660 itself can be added to.Fig. 8 A are control ID words The example values and these values of section 662 are on what chart indicated by the information in control information field 664.Such as Fig. 8 A institutes Show, row 801 show each value of control id field 662, and row 802, which are shown, will be included in control information field 664 The exemplary size of control information field 664 in various control information and bracket, and row 803 are shown to control information The various descriptions for the control information that field 664 includes.For example, as shown in Fig. 8 A row 810,0 value in id field 662 is controlled Being properly received (RX) to previous MPDU frames is indicated, and control information field 664 can include validating that (ACK) information, with And failure reception of the 1 value instruction to previous MPDU frames in control id field 662, and control information field 664 can wrap Include NACK (NACK) information.HE control fields 660 include ACK/NACK some non-limiting benefits be not possible In the presence of the demand being polymerize to ACK message, this can reduce MAC expenses, and HE control fields 660 can be provided and are used for The efficient signaling of NACK message.The value and description provided in fig. 8 a is exemplary, and is directed to different control id fields Other contents of 662 values and description are possible.For example, control id field 662 also can indicate that and target latency time (TWT) Information, Power Control signaling, link circuit self-adapting information, the operator scheme of correlation change (for example, enabling RTS/CTS instructions, reducing Or increase BSS operating functions (baseline MCS/SS/BW etc.)), energy measuring information, performance metric, coordination/schedule information and base Related signaling of this services set (BSS) etc..
Fig. 8 B be Fig. 7 B control id field 797 other examples value and these values on control information field 664 In information indicated by what chart.
Another example of the information type indicated in id field 662 or 797 is controlled includes BAR information and BA information, As shown in Fig. 8 A row 811 and 812, wherein BAR information can include 4 bytes, and BA information can include from 4 to Any number of byte between 130 or more bytes.Fig. 9 is when control id field 662 indicates BAR or BA information When, the figure of the form of control information field 664.For example, with reference to Fig. 8 A, when it is 2 to control the value of id field 662, its instruction BAR and The control information field 664 of HE control fields 960 includes BAR control fields 971 and BAR information fields 972.Similarly, with reference to Fig. 7 B and 8B, when it is 2 to control id field 797, it indicates that the control information field 664 of BAR and HE control fields 960 includes BAR control fields 971 and BAR information fields 972.Although 2 values in id field 662 and 797 as shown in figs. 8 a and 8b, are controlled to use Include the information related to BAR in instruction control id field 662 and 797 and control information field 664, but control id field Other values in 662 and 797 also be likely used for indicating BAR information.In certain aspects, BAR control fields 971 include two words Section and BAR information fields 972 include the byte of variable number.In another example, when it is 3 to control the value of id field 662, It indicates BA, the MPDU of BA instructions previous receipt reception state, and control information field 664 includes BA control fields 981 and BA information fields 982.In certain aspects, BAR control fields 981 include 2 bytes and BAR information fields 982 wrap Include the byte of variable number.HE control fields 660 include BAR/BA some non-limiting benefits be possible be not present pair The demand that BAR/BA message is polymerize, this can reduce MAC expenses.
Figure 10 is the time series chart for showing the example frame exchange 1000 in wireless communication system 100.Figure 10's In embodiment, AP and STA 1 can consult 2 downlink (DL) BA of generation in transmission opportunity (TXOP) 1010 and (have industry Be engaged in identifier TID 1, TID 2) and 1 up-link (UL) BA (there is TID 3) session.AP is in the polymerization with TID 2 Request is in TID 1 BA (for example, BAR1 is included in HE control fields 1062) in MPDU (A-MPDU) 1002.As schemed Show, STA 1 is responded in the A-MPDU 1004 with TID 3 using 2 BA, for TID 1 BA1 (BAR1) with And the BA2 (A-MPDU 1002) for TID2.A-MPDU 1004 includes HE control fields 1064, and it includes BA1, BA2 and use In the CRC (CRC) of increase protection.BA 3 1006 is sent in response to the A-MPDU1004 with TID 3, AP.Though So as illustrated, only HE control fields 1064 include CRC, but in certain embodiments, AP and/or STA1 can control to HE Field adds CRC to increase protection.The HE control fields shown in 1000 are exchanged using example frame can be by TXOP 1010 MAC expenses reduce about 60 bytes.These bytes can be used for eliminating by carrying out polymerizeing caused list to control frame Point failure.For example, HE control fields can be added to each MPDU and can be protected by 8 bit CRC.
Another example of the information type indicated in id field 662 or 797 is controlled includes channel quality information (CQI) With MCS feedback information, as shown in Fig. 8 A row 813, wherein CQI and MCS feedback information can include the byte of variable number. The STA that CQI and MCS feedback information can be communicated to each other provides the information on channel quality and/or MCS.For example, make It may wish to send preferable MCS speed or to letter to sender STA/AP with signal for the STA of the expection recipient of communication The renewal of road quality state so that sender STA can make to MCS, channel, spatial flow or for transmission other transmission join Several appropriate selections.Figure 11 is the control of HE control fields 1160 when controlling id field 622 to indicate CQI or MCS feedback information The figure of the form of information field 664.For example, with reference to Fig. 8 A, when it is 4 to control the value of id field 662, it indicates CQI or MCS feedback letter Breath, and control information field 664 include CQI control fields 1171, channel bit figure field 1172, subchannel bit figure field 1173 and channel/MCS feedback field 1174.In certain embodiments, CQI control fields 1171 can include 1 byte, channel Bit diagram field 1172 can include 1 byte, and subchannel bit figure field 1173 can include 0 to 8 byte, Yi Jixin Road/MCS feedback field 1174 can be multiplied by spatial flow quantity (N) including 0 to 3.As shown in figure 11, CQI control fields 1171 can Field 1183 be present including request/response field 1181, dialog token field 1182, subchannel bit figure, channel/MCS refers to Show field 1184 and reserved field 1185.Channel/MCS feedback field 1174 can include two kinds of different forms, and this is depended on Control information field 664 is to carry CQI or MCS feedback information.As shown in figure 11, when control information field 664 is anti-including MCS During feedforward information, channel/MCS feedback field 1174 can include spatial flow quantity (NUM_STS) field 1191, MCS fields 1192, Protection interval (GI) field 1193, multi-user (MU)/code field 1194, signal to noise ratio (SNR) field 1195 and reserved field 1196.When control information field 664 includes channel feedback information, channel/MCS feedback field 1174 can include different words Duan Jihe, it can include SNR or received signal strength indicator symbol (RSSI) information.
In certain embodiments, STA can for each channel and/or OFDMA subchannels come ask/CQI/MCS is provided Feedback, as specified as bit diagram (for example, channel bit figure field 1172 and/or subchannel bit figure field 1173).Son letter There is field 1183 and may indicate whether on sub-channels provide/ask to feed back in road bit diagram, and channel/MCS instructions Field 1184 can indicate whether channel/MCS feedback field 1174 should include MCS feedback or channel feedback, as described above. STA can provide two kinds of feedback (parametric type or statistical) to requesting party STA.Parametric type feedback can indicate to be asked The side of asking STA is used for the configured transmission set of the recommendation of the transmission for STA.Statistical feedback can indicate to allow requesting party STA Estimate the channel estimation metric set (for example, SNR, RSSI etc.) of the quality of the channel/sub-channel at STA.
The another type of information indicated in control id field 662 or 797 includes economize on electricity poll (PS- polls) information, As shown in Fig. 8 A row 814.PS- polling messages can include UL buffer state reports to transmitting the STA of information each other and providing The economize on electricity of announcement.Figure 12 is the control information field when controlling id field 662 to indicate enhanced PS- polls (ePS- polls) information The figure of 664 forms.For example, with reference to Fig. 8 A, when it is 5 to control the value of id field 662, its instruction includes UL buffer state reports EPS- polls, and the control information field 664 of HE control fields 1260 includes ePS- Polling Fields 1270.EPS- Polling Fields 1270 include buffer state (BS) control field 1271 and BS reporting fields 1280.Such as ePS- Polling Fields in fig. 12 1270 is shown below, and BS control fields 1271 include request/response field 1272, access level (AC) bind field 1273 and protected Section of writeeing down characters 1274.BS reporting fields 1280 include zoom factor field 1281, available buffer unit (BU) length field 1282 and protected Section of writeeing down characters 1283.Zoom factor field 1281 can allow STA to cover the BU length of wider scope.In certain embodiments, may be used Buffer cell (BU) Length Indication BU size (in units of eight bit byte), and in other embodiments, it indicates to send BU The required duration (for example, appropriate scaling is carried out in units of microsecond or using zoom factor).
In certain embodiments, AP can require that STA provides UL BS reports so that AP, which knows and can distributed, to be used for The resource of UL communications.AC bind fields 1273 can indicate that BS requests or response will be directed to each AC (AC bind fields 1) 1273 are or are common (AC bind fields 1273 are 0) for all AC.In certain aspects, can be in ePS- polls Economize on electricity signaling is provided in 1270.
The another type of information indicated in control id field 662 or 797 includes the protection information based on CRC, such as schemes Shown in 8A row 815, the protection information based on CRC can include 1 byte.CRC information can be mac frame (for example, Fig. 7 A Mac frame 700) MAC header first field provide the protection based on CRC.Figure 13 is when control id field 662 indicates CRC letters During breath, the figure of the form of control information field 664.For example, with reference to Fig. 8 A, when it is 31 to control the value of id field 662, it indicates exist CRC is protected, and the control information field 664 of HE control fields 1360 (d) includes crc field 1370.Crc field 1370 can be with Include for all formerly HE control fields or the MAC header of mac frame of mac frame (for example, mac frame 1300 described below) It is all formerly fields provide protections.In certain embodiments, crc field 1370 always occurs from the knot of HE control fields 1360 At beam, therefore id field can need not be controlled to indicate the end of HE control fields.
As shown in figure 13, HE control fields 1360 (d) include the field of mac frame 1300.Mac frame 1300 and Fig. 7 A MAC Frame 700 is similar and adapts from mac frame 700.For purposes of brevity, the area between mac frame 700 and 1300 is only described herein Not.Mac frame 1300 includes multiple HE control fields 1360.As illustrated, mac frame 1300 includes HE control fields 1360 (a) (its In certain aspects correspond to Fig. 9 HE control fields 960), (it corresponds to HE control fields 1360 (b) in certain aspects Figure 11 HE control fields 1160), HE control fields 1360 (c) (its in certain aspects correspond to Figure 12 HE control fields 1260), HE control fields 1360 (d), and other HE control fields (not shown) can be included.In certain aspects, it is multiple One or more of HE control fields 1360 HE control fields 1360 can be addressed to one or more STA.For example, in DL In MU PPDU, HE control fields 1360 (a) can be addressed to the first STA, and HE control fields 1360 (b) can be addressed to 2nd STA.In certain aspects, the quantity of HE control fields 1360 can be intended to based on DL MU PPDU for its STA's Quantity.For example, if DL MU PPDU are intended to be directed to four STA, PPDU can include four HE control fields 1360, for Each mono- HE control field 1360 of STA, although for each STA exist more or less HE control fields 1360 be also can Can.
In certain embodiments, STA can increase the HE control fields 1360 (d) comprising crc field 1370 to protect Have first HE control fields (for example, shown in Figure 13 option one protection mac frame 1300 HE control fields 1360 (a)- (d)).The non-limiting benefit of the embodiment is：It is that it can allow that the remainder with mac frame 1300 separates, for control The error detection of signalling information.CRC is received correctly control information by instruction independently of FCS states.Other In embodiment, crc field 1370 protects all formerly fields included in the MAC header of mac frame 1300 (for example, showing in Figure 13 The option 2 gone out protects HE control fields 1360 (a)-(d) of mac frame 1300 and all first words until fc field 510 Section).The non-limiting benefit of the embodiment is：It can allow the early detection to important information.CRC in the embodiment is protected Shield can also determine that mac frame 1300 is (for example, being directed to space reuse) generated by member STA or non-member STA generations Or whether mac frame 1300 is intended to for specific STA, and if it is not, then it is dimensioned correctly network allocation vector (NAV) (for example, protect and economize on electricity for TXOP).
The another type of information indicated in control id field 662 or 797 includes service quality (QoS) information, such as schemes Shown in 8B row 863.QoS information (that is, can increase to being provided with the STA communicated with each other to buffer state request/report The QoS controls of strong version) instruction.Figure 14 is the lattice of HE control information field 797 when controlling id field 797 to indicate QoS information The figure of formula.For example, with reference to Fig. 8 B, when it is 3 to control the value of id field 662, it indicates that buffer state request/report (that is, strengthens The QoS controls of version), and the control information field 664 of HE control fields 1460 includes QoS control fields 1470.At some In aspect, QoS control fields 1470 can include 2 bytes.When carrying out BS polls, QoS control fields 1470 include TID/ SF fields 1471 and reserved field 1472, and when carrying out BS reports, QoS control fields 1470 include TID/SF fields 1471st, TXOP Duration fields 1475 and queue size field 1476.In certain aspects, AP can be included by sending The BS poll frames of QoS control fields 1470, are polled for STA buffer state to STA.QoS control fields 1470 Whether can be " per TID ", " all TID " and other related BS polling parameters with specific polling.As response, non-AP STA BS reports can be delivered in QoS control fields 1470.In certain aspects, it is empty in QoS data and QoS per TID BS information Carried in frame.In other side, all TID, every TID BS information carry in QoS control fields 1470.One In a little aspects, QoS control fields 1470 can polymerize with the other information in HE control fields 660.QoS control fields 1470 Non-limiting benefit is：It can reduce caused MAC expenses.
The another type of information indicated in control id field 662 or 797 includes unicast triggering information, such as Fig. 8 B row Shown in 865.Unicast triggering information (can be used for the resource of up-link to being provided with the STA communicated with each other to trigger frame Distribution and other parameters) instruction.Figure 15 is the HE control information fields when controlling id field 797 to indicate unicast triggering information The figure of 795 forms.For example, with reference to Fig. 8 B, when it is 5 to control the value of id field 662, it indicates that trigger frame (that is, strengthens version QoS is controlled), and the control information field 664 of HE control fields 1560 includes triggering information field 1570.In some respects In, triggering information field 1570 can include the byte of variable number.Trigger information field 1570 can include on trigger frame, The information of the UL MAC forms of subchannel distribution, compressed for STA etc..In certain aspects, information field is triggered 1570 can polymerize with the other information in HE control fields 660 and can be carried in DL MU PPDU.Triggering letter Ceasing the non-limiting benefit of field 1570 is：It can reduce the MAC expenses of generation.For example, by being used as in DL MU PPDU HE control fields 660 a part, the other control information on trigger frame can be using minimal-overhead in DL MU Carried in PPDU.
In certain aspects, HE control fields 660 can carry in UL MU PPDU.In UL MU PPDU, AP 110 can receive two or more PPDU from two or more STA.UL MU PPDU can include HE control fields One or more HE control fields 660 of different piece in 660, positioned at UL MU PPDU, as described herein (for example, In the PHY headers as a part for signal field (SIG-A, SIB-B or SIG-C)).For example, three STA can pass through hair Three independent fields of SIG-B 1700 are sent to send information (being discussed herein below) in UL MU PPDU, are sent out for each STA A SIG-B field 1700 is sent, each SIG-B fields 1700 include one or more of HE control fields 660 HE control words Section 660.In certain embodiments, can be by other means (for example, using CDMA, OFDMA, TDMA, SDMA etc.) come in generation Code, frequency are multiplexed on the time to SIG-B fields 1700.In addition, for both DL MU PPDU and UL MU PPDU, can To be multiplexed by other means on the time in code, frequency or to PPDU to generate from and/or go to multiple STA's MU PPDU。
Figure 16 is the time series chart for showing the example frame exchange 1600 in wireless communication system 100.Figure 16's In embodiment, AP can send the beacon message 1601 with business instruction figure TIM 1, TIM 2 and TIM 4.Then, AP can be with Triggering message 1602 is sent to ask the control information from STA, there is wherein AP the DL BU for the STA to feed back.For example, AP can ask QCI/MCS to feed back and/or BS report to adjust the DL BU configured transmissions for each STA.STA is (for example, STA 1st, STA 2, STA 4) report can be returned to by sending enhanced PS- poll frames 1603,1604 and 1605 respectively.EPS- takes turns Frame 1603,1604 and 1605 is ask to can correspond to Figure 12 ePS- Polling Fields 1270 and can wrap in message 1602 is triggered Include the HE control responses for request.The DL resources that ePS- poll frames 1603,1604 and 1605 can include recommending are (for example, most Excellent M resource (in channel, MCS, signal intensity etc.)) and BS report, wherein BS report include it is that each STA has, For the data volume of the UL to AP.After the information is received, AP confirms to receive and dispatched by sending ACK 1606 For these STA DL/UL transmission (for example, using triggering message 1607 come dispatch the message 1608 of DL 1, the message 1609 of DL 4, The message 1610 of UL 1 and the message 1611 of UL 4, and dispatch the message 1613 of DL 2 and the message of BA 2 using triggering message 1612 1614).AP can use a TX parameter in the TX parameters recommended from each STA and use in ePS- poll frames 1603rd, the buffer status information received in 1604 and 1605 dispatches DL/UL transmission, with realize Internet resources efficiently point Match somebody with somebody.
In certain embodiments, HE control fields (for example, HE control fields 660) can be located at the other parts of PPDU frames In.In certain aspects, HE control fields 660 can be in any field of PPDU preamble portion.Figure 17 A are examples Property 802.11PPDU 1799 figure.PPDU 1799 can include preamble portion 1750 and data division 1770.Lead code portion Divide 1750 can include legacy preamble code part 1755.As illustrated, legacy preamble code part 1755 is practised handwriting including Legacy Section (L-STF) 1751, long training field (L-LTF) 1752 and signal field (L-SIG) field 1753.Preamble portion 1750 is also L-SIG fields 1754, HE-SIGA fields 1760 including repetition, HE-SIGB fields 1761, HE-STF fields 1762, HE-LTF Field 1763 and HE-SIGC fields 1764.In certain aspects, preamble portion 1750 (can not shown including other field Go out), the size of these fields can be rearranged, removes these fields and/or readjust, and the content of these fields is Change.For example, in various embodiments, preamble portion 1750 can also include one or more in the following：STF Field (for example, HT-STF, VHT-STF, HE-STF), LTF fields (HT-LTF, VHT-LTF, HE-LTF), one or more are another Outer signal field is (for example, other HE-SIGA, HE-SIGB, HE-SIGC field, HT-SIGA, VHT-SIGB, VHT- SIGC, one or more fields repeated etc.).In certain aspects, if PPDU is MU, from PPDU 1799 specific word Section (for example, HE-STF 1762 in HE-SIGB 1761 or UL MU PPDU in DL MU PPDU) starts, the specific word Section and ensuing field can include the information for more than one STA.Furthermore it is possible on frequency, time or code To being multiplexed for the information of more than one STA multi-user.
Figure 17 B are wrapped in the SIG-B fields 1700 of PPDU (for example, PPDU frames 400 or 1799) physical layer (PHY) header The figure of the HE control fields 660 included.In certain embodiments, SIG-B fields 1700 are the HE SIG-B fields of HE PHY headers, As defined in 802.11 standards.In certain aspects, when the bit (B1) of SIG-B fields 1700 is arranged to 0, then The content of SIG-B fields 1700 is the anything designed by PHY.In other side, when the bit of SIG-B fields 1700 (B1) when being arranged to 1, then the content of SIG-B fields 1700 is one or more HE control fields 660.In some embodiments In, if the Length Indication of L-SIG fields its be CMAC frames, PPDU frames are the HE NDP for carrying MAC information (CMAC) frame. In some aspects, bit (B0) may be used as NDP instruction (if 1, NDP, PLCP service data units otherwise be present (PSDU)).Including the non-limiting benefit of HE control fields in SIG-B fields is：It can provide the trigger frame that advances The solution of design, this is due to the content that HE control fields 660 can carry trigger frame.Have in addition, it can be reduced For the risk of the Parallel Design of PHY trigger frames, this is due to that the content of PHY HE control fields 660 is provided by MAC.
As described above, HE control fields 660 can be in any field in the field of Figure 17 A preamble portion 1750 (for example, L-STF 1751, L-LTF 1752, L-SIG 1753, repeat L-SIG fields 1754, HE-SIGA fields 1760, HE-SIGB fields 1761, HE-SIGC fields 1764 etc.), including unshowned extra field.In addition, for receiving PPDU 1799 one or more STA, one or more HE control fields 660 can be included in the field of preamble portion 1750 In one or more fields of preamble portion 1750.For example, HE-SIGB 1761 can include being intended to be directed to one or more STA One or more HE control fields 660, and HE-SIGC 1764 can include being intended to for one or more different STA One or more HE control fields 660.
In certain embodiments, HE control fields 660 can be located in the A-MPDU subframes of polymerization.For example, Figure 18 is bag Include the A-MPDU 1800 of multiple A-MPDU subframes 1810 figure.As illustrated, A-MPDU 1810 (n) includes MPDU delimiter words Section 1820, MPDU fields 1830 and filling field 1840.MPDU delimiter fields 1820 include frame end (EOF) field 1821st, reserved field 1822, MPDU length fields 1823, crc field 1824 and delimiter signature field 1825.In addition, MPDU fields 1830 can include HE control fields 660.In certain embodiments, can be in A-MPDU subframes (for example, A-MPDU Subframe 1810 (n)) in the contents of HE control fields 660 is sent with signal.For example, when MPDU length fields 1823 indicate MPDU's Length is less than 14 bytes, then MPDU 1830 can include HE control fields 660.In certain aspects, on HE control fields The fact that 660 bit (B1) is non-zero will be enough to determine MPDU1830 into a kind of MPDU of format, because MPDU 1830 can re-assembly PV2 frames.Including the non-limiting benefit of HE control fields 660 in A-MPDU subframes is：Include HE The A-MPDU subframes of control field 660 can be used for filling UL/DL MU PPDU.
In certain embodiments, at least one in the HE control fields 660 carried in PPDU (for example, PPDU 1799) The launch party that individual or multiple HE control fields 660 can include the HE control fields 660 on being included in PPDU 1799 asks pin The finger of this part of confirmation to PPDU 1799 (that is, the PPDU 1799 of the control information carried in HE control fields 660) Show.After the PDUU 1799 of the live part comprising the frame for carrying HE control fields 660 is received, recipient can pass through Send and confirm to confirm the reception.The confirmation being properly received to HE control fields 660 can be existing frame (for example, Ack, BlockAck frames (as reserved field or a part for value therein)) in carry or can be one or more by carrying The PPDU of recipient's generation of HE control fields 660, at least one HE controls in wherein one or more HE control fields 660 Field 660 includes the instruction that the success (or unsuccessful) to the part of HE control fields 660 of previous receipt receives.In some implementations , can be to HE control fields 660 in order to distinguish to multiple HE control fields 660 (by what is sent in the air) delivering/receptions in example Middle addition token field is with identification information/ack sequences.
Figure 19 is some aspects according to present disclosure, the flow chart for the illustrative methods 1900 of radio communication. In certain aspects, method 1900 can be performed by equipment 302.Method 1900 can also by the AP 110 that is shown in Fig. 1 and 2 or One or more of UT 120 is performed, it would be recognized by those skilled in the art that, method 1900 can be by other appropriate Equipment and system realize., in various embodiments, can be with although describing method 1900 herein by reference to certain order This paper frame is performed in a differing order or can omitted, and extra frame can be increased.
Operation box 1905 includes selecting one or more control fields to be included in frame from the control field of variable number In.Operation box 1910 includes the frame that generation includes the control field of selected quantity, and each control field includes control field End, end to the control field of selected quantity of the end storage of control field or another control in frame be present The designator that field processed is indicated.Operation box 1915 includes sending frame.
In certain embodiments, device for wireless communications can be according to certain embodiments described herein, the side of execution One or more of the function of method 1900 function.The device can include being used to select one from the control field of variable number Individual or multiple control fields are to be included in the unit in frame.In certain embodiments, the unit for selection can be by processor 304 or DSP 320 (Fig. 3) is realized.In some selections, the unit for generation can be configured as performing (the figure of frame 1905 19) function.The device can also include：Include the unit of the frame of the control field of selected quantity for generation, each Control field includes the end of control field, end to the control field of selected quantity of the end storage of control field or The designator that another control field is indicated in frame be present in person.In certain embodiments, the unit for generation can be with Realized by processor 304 or DSP 320 (Fig. 3).In certain embodiments, the unit for generation can be configured as performing The function of frame 1910 (Figure 19).The device can also include：For sending the unit of frame.In certain embodiments, for sending Unit can be realized by emitter 310 (Fig. 3).In certain embodiments, the unit for transmission can be configured as holding The function of row frame 1915 (Figure 19).
Figure 20 be Fig. 7 B control id field 797 other examples value and these values on control information field 664 In information indicated by what chart.As shown in figure 20, row 2001 show each value of control id field 662, row 2002 Show and show the implication for the various control information being included in control information field 664, and row 2003 to control The various descriptions for the control information that information field 664 includes.For example, as shown in Figure 20 row 2005, control in id field 662 0 value mean UL MU response schedulings, and indicate that control information field 664 can be included for carrying the UL MU that confirm immediately PPDU schedule information, wherein the response for the A-MPDU through request in pairs of confirming to be expected to immediately.Shown in Figure 21 A when control The example format of control information field 664 when ID 662 processed is 0.
Figure 21 A show the figure of the example format of the control information field 664 when it is 0 to control id field 662.Such as figure Shown, control information field 664 includes UL PPDU length fields 2102, resource unit (RU) allocation field 2104 and the 3rd word Section 2106.UL PPDU length fields 2102 can indicate the length of UL MU responses.In certain aspects, UL PPDU length word Section 2102 includes 9-12 bit.In certain aspects, UL PPDU length fields 2102 can be will be by as to including the control The response of the frame of information processed come the L-SIG fields of the PHY headers of the frame sent includes the 9-12 of length field, and individual (actual value takes Certainly in the size of UL PPDU length fields) minimum effective bit (LSB).Recipient STA uses the UL PPDU of the frame through request The content of length field 2102 is individual to fill the 9-12 in its L-SIG field as the PHY headers for responding the frame to send LSB, and remaining 3-0 MSB is arranged to 0.Alternatively, UL PPDU length fields 2102, which include, to be used as response to be sent out The UL PPDU sent the value in units of byte or microsecond.In certain embodiments, UL PPDU length fields 2102 can not It is configured to null value.RU allocation fields 2104 can indicate to be allocated for the resource unit (RU) for sending UL MU responses.One In a little aspects, RU allocation fields 2104 can include 1-15 bit.3rd field can include 1-15 bit and can be with It is preserved for using in the future.
Referring back to Figure 20, it is expert in 2006,1 value of control id field 662 means to receive operator scheme instruction, and controls Information field 664 processed can include the information related to MPDU of the transmission comprising HE control fields STA reception operator scheme. The example format of the control information field 664 when it is 1 to control ID662 is shown in Figure 21 B.
Figure 21 B show the figure of the example format of the control information field 664 when it is 1 to control id field 662.Such as figure Shown, control information field 664 includes receiver (RX) spatial flow quantity (NSS) field 2152, RX channel widths field 2154 With the 3rd field 2156.RX NSS fields 2152 can indicate the maximum quantity N for the spatial flow that STA is supported when receivingSS, and And it can be configured to NSS-1.In certain aspects, RX NSS fields 2152 include 3 bits.RX channel widths field 2154 The channel of operation width that STA is supported when receiving can be indicated.In certain aspects, RX channel widths field 2154 is directed to 20MHz is arranged to 0, is arranged to 1 for 40MHz, is arranged to 2 for 80MHz, and be arranged to 3 for 160MHz. In certain aspects, RX channel widths field 2154 can include 2 bits.3rd field 2156 can include 0-X bit, Wherein X is greater than 1 integer, and can be preserved for using in the future.
Reference picture 6 and 9, Figure 22 are the exemplary control when controlling id field 662 to indicate explicit ACK/BA solicited messages The figure of information field 664.For example, in certain aspects, when it is 3 to control the value of id field 662, it explicitly indicates control information Field 664 provides the information related to the requests of ACK/BA immediately.As shown in figure 22, the control information field of HE control fields 660 664 include TID_INFO fields 2205, TID value fields 2210, the bit diagram size field 2212 of request, beginning sequence number (SSN) field 2214 and SSN fields 2216 be present.In certain aspects, TID_INFO fields 2205 indicate HE control fields The quantity (for example, TID_INFO values+1) of TID present in 660.In certain aspects, the instruction of TID value fields 2210 is asked The targeted TID of Ack/BA.In certain aspects, the bit diagram size field 2212 asked indicates (block) asked Ack bit diagrams size is (if for example, 1 bit, for 0 (that is, Ack/Nack)；If 1 byte, for 1；If 4 words Section, then be 2；If 8 bytes, for 3, etc.).In certain aspects, there is the instruction of field 2214 and SSN fields be present in SSN 2216.For example, if there is SSN subfields, then there is field 2214 and can be configured to 1 in SSN, otherwise be arranged to 0.One In a little aspects, SSN fields 2216 include the beginning sequence number (A BAR) of the TID.For example, it is to be used to offset BA fractions that it, which exists, Explicit instruction.
In certain aspects, TID_INFO fields 2205 include 3 bits, and TID value fields 2210 include 4 bits, institute The bit diagram size field 2212 of request includes 2 bits, and SSN, which has field 2214, includes 1 bit, and SSN fields 2216 include 0 or 12 bit.
In another example, control id field 662 can indicate explicit ACK/BA response messages, and control information word Section 664 can provide the information related to confirming response immediately.For example, in certain aspects, when the control value of id field 662 is 4 When, it explicitly indicates that control information field 664 provides the information related to confirming response immediately.As shown in figure 23, HE is controlled The control information field 664 of field 660 includes TID_INFO fields 2305, TID value fields 2310, the big small character of bit diagram of request Field 2214 and BA bit diagrams field 2316 be present in section 2312, beginning sequence number (SSN).In certain aspects, TID_INFO Field 2305 indicates the quantity of TID present in HE control fields (for example, Fig. 7 B HE control fields 795).In some respects In, TID value fields 2310 indicate that Ack/BA responds targeted TID.In certain aspects, the bit diagram size field asked (block) Ack bit diagrams size that 2312 instructions are asked is (if for example, 1 bit, for 0 (that is, Ack/Nack)；If 1 Byte, then it is 1；If 4 bytes, for 2；If 8 bytes, for 3, etc.).In certain aspects, SSN fields 2314 Include current TID (BA) beginning sequence number.In certain aspects, BA bit diagrams field 2316 includes the bit diagram of BA finger. In certain aspects, if bit diagram size is non-zero, BA bit diagrams field 2316 be present.
In certain aspects, TID_INFO fields 2305 include 3 bits, and TID value fields 2310 include 4 bits, institute The bit diagram size field 2312 of request includes 2 bits, and SSN fields 2314 include 0 or 12 bit, and BA bit diagram words Section 2316 is based on the bit diagram size field 2312 asked and including 1,16,32 or 64 bit.
Figure 24 is to show the time series chart 2400 that example frame exchanges, wherein by baseline Frame switch (top) with utilizing The Frame switch (bottom) of explicit ACK/BA in HE control fields (for example, HE control fields 660 and 795) is compared.Such as figure Shown, in fig. 24, both ACK that baseline and BA frames include show the mono- MPDU 2401 of VHT sent from the first equipment. After the SIFS periods, the second equipment in baseline Frame switch, which is sent, confirms (ACK) message 2402, followed by multiple MPDU Message 2405 (a) -2405 (m).In bottom, after the SIFS periods, the second equipment can send MPDU to the first equipment 2410(a)-2410(n).MPDU 2410 (a) -2410 (n) includes the ACK in HE control fields 660 and 795.
Figure 25 is to show the time series chart 2500 that example frame exchanges, wherein by baseline Frame switch (top) with utilizing The Frame switch (bottom) of explicit BAR in HE control fields 660 and 795 is compared.As illustrated, in fig. 25, in baseline In the Frame switch of top, the first equipment sends MPDU 2421 (a) -2421 (n), followed by BAR 2425.The SIFS periods it Afterwards, the second equipment in baseline Frame switch sends one or more BA 2430, followed by one or more MPDU 2435. In bottom, the first equipment sends the BAR included in MPDU HE control fields 660 and 795 MPDU 2440 (a) -2440 (n). After the SIFS periods, the second equipment in the Frame switch of bottom sends one or more BA 2430, followed by one or more Individual MPDU 2435.
One or more of HE control fields 660 (or Fig. 7 B HE control fields 795) HE control fields 660 (or Fig. 7 B HE control fields 795) some non-limiting benefits for including BAR/BA are：May not be needed to BAR/BA message or Multiple control frames are polymerize, and this can reduce MAC expenses.It is in addition, including BAR/BA information in HE control fields：Its Single point failure can be eliminated, this is due to that each MPDU can carry BAR/BA information.In certain aspects, using HE control words Section can allow more flexibilities to carry BAR/BA information, and this is due to that any MPDU can ask to be directed to other TID/ classes Other MPDU of type response.In addition, can be with the control information of seamless addition using the realization of multiple HE control fields 660 and 795 Various combinations (for example, as shown in figure 13).For example, a HE control field 660 can include the information for BAR, and Another HE control field 660 can include the information for channel quality information.
Figure 26 is according to one embodiment, and more STA blocks confirm the figure of the example format of (BA) frame 2600.As illustrated, BA frames 2600 include MAC header part 2602, BA control fields 2604, BA information fields 2610 and FCS fields 470.One In a little embodiments, MAC header part 2602 can include 2 bytes, and BA control fields 2604 can include 2 bytes, BA letters Breath field 2610 can include the byte of variable number, and it includes each associated identifiers for being directed to and being identified in BA frames 2600 (AID) information.
In certain embodiments, BA information fields 2610 can include one or more examples per STA Information subfields, Include an example for each STA being addressed.It is each to include task identifier (TID) per STA Information subfields and receive The STA of frame 2600 AID.It is true that every AID task identifier (TID) information field 2611, block can be included per STA Information subfields Recognize and start Sequence Control field 2612 and BA bit diagrams field 2613.As shown in figure 26, included for STA 1-n, BA frames 2600 Information and every STA Information subfields for " n " individual STA are included per AID TID informations field 2611 (1), block confirms to start Sequence Control field 2612 (1) and BA bit diagrams field 2613 (1) are to field 2611 (n), 2612 (n) and 2613 (n).One In a little embodiments, the ACK/BA for being directed to the multiple TID included in more TID A-MPDU is realized per AID TID informations field 2611. ACK type field (not shown) can also be included per AID TID informations field 2611, it can be indicated in BA information fields 2610 Other fields length.For example, can include 2 bytes per AID TID informations field 2611, block confirms to start sequence control Field 2612 can include 0 or 2 byte, and BA bit diagrams field 2613 can include the word of 0,4,8,32 or variable number Section.ACK type fields can indicate the length of each field in these fields.In certain aspects, TID some value (example Such as, 15 or another value) can be with indicator to the action ACK carried in A-MPDU ACK.More STA BA frames 2600 can be by AP Response as the PPDU to enabling triggering.In certain aspects, BA frames 2600 can be with conventional form send or can To be aggregated in response A-MPDU.In certain embodiments, BA frames 2600 can be used as by non-AP STA to DL MU PPDU Response sent and response A-MPDU in.
Figure 27 is according to one embodiment, and more STA blocks confirm the figure of the example format of (BA) frame 2700, wherein more STA Block BA frames 2700 include HE A- control fields 795.BA frames 2700 are similar with Figure 26 BA frames 2600 and adapt from BA frames 2600.For purposes of brevity, the difference between BA frames 2600 and 2700 is only described herein.As shown in figure 27, BA frames 2700 Including BA information fields 2710, BA information fields 2710 include HE A- control fields 795.Although the quilt of HE A- control fields 795 It is shown as at the end of BA information fields 2710, but it can be located in a part for BA information fields 2710 or can be with Any AID or TID values are associated.In certain aspects, HE A- control fields 795 can include 4,8 bytes or variable numbers Byte.In certain embodiments, some TID value can indicate HE A- control fields 795 be present.It is associated with the TID values HE A- control fields 795 can be carried per STA Information subfields, start Sequence Control field 2612 and/or BA without carrying BA Bit diagram field 2613.In certain aspects, it can indicate that HE A- are controlled per the ACK type fields of AID TID informations field 2611 The length of field 795 processed.In certain aspects, when ACK type fields are the first values, HE A- control fields 795 are 4 words Section, and when ACK type fields are second values, HE A- control fields 795 are 8 bytes or the byte of variable number.
In certain aspects, as the response to one or more STA, AP can send more STA BA frames 2700, and it is wrapped Controlled containing the BA information for one or more of its STA STA and for one or more of its STA STA HE A- Field 795.In certain aspects, BA information and HE A- control fields 795 can be directed to identical STA or different STA.HE A- control fields 795 can also carry the UL MU resource allocations for STA.In other embodiments, STA can send conduct More STABA frames 2700 of response, it includes both confirmation and feedback information.
The embodiment described herein for being related to HE A- control frames 799, which can beneficially facilitate, makes MAC minimizing overheads, Because it eliminates or reduced the demand for polymerizeing multiple control frames in A-MPDU.In addition, HE A- control frames 799 can To be to meet traditional (for example, being carried with traditional PPDU forms), the control information required is comprised in identical control In frame processed, and it can allow to seamlessly add the combination of control information (for example, BA/Ack+ triggerings, BA/Ack+ buffers State, BA+CQI+ROMI, enhanced PS- polls etc.).In addition, HE A- control frames 799 can provide delivering HE control information Efficient and flexible mode, which do not need controls wrapper.
Word " exemplary " used herein means " as example, example or explanation ".Here depicted as " example Any embodiment of property " is not necessarily to be construed as being preferable over other embodiments or more advantageous than other embodiments.Below with reference to attached The various aspects of the systems, devices and methods of novelty have been described more fully in figure.However, present disclosure can be with many different Form embodies, and should not be construed as limited to any specific structure or function presented through present disclosure. More specifically, there is provided these aspects make it that present disclosure will be thorough and complete, and will be scope of the present disclosure It is fully conveyed to those skilled in the art.Based on teaching herein, it should be appreciated by those skilled in the art that present disclosure Scope is intended to any aspect of novel systems, devices and methods disclosed herein, and no matter this aspect is independently real Now or with any other aspect of the present invention realize in combination.For example, use any amount of side described in this paper Face can realize a kind of device or can implement a kind of method.In addition, the scope of the present invention is intended to using other structures, work( Can or except the various aspects of the invention described herein or the various aspects different from the invention described herein 26S Proteasome Structure and Function come such device or method for implementing.It should be appreciated that any aspect disclosed herein can be by right It is required that one or more member usually embody.
While characterized as particular aspects, but many modifications in terms of these and displacement fall scope of the present disclosure Within.It is specific scope of the present disclosure being not intended to be limited to although refer to some benefits and advantage of preferred aspect Benefit, purposes or target.More precisely, it is intended to be widely applicable for different wireless technologys in terms of present disclosure, is It is under unified central planning put, network and host-host protocol, some of them by means of example in accompanying drawing and below to the description of preferred aspect in say It is bright.The detailed description and the accompanying drawings are merely illustrative present disclosure and non-limiting present disclosure, and scope of the present disclosure by institute Attached claim and its equivalent item define.
It should be appreciated that typically come come any reference to element using the mark such as " first ", " second " herein Say the quantity or order for not limiting those elements.But herein, using these marks as one kind at two or more The facility wireless device made a distinction between multiple examples of element or an element.Therefore, to the first element and second element Reference be not meant to be merely able to use two elements, also not meaning that must be in a manner of certain in second element by the first element Before.Equally, unless stated otherwise, otherwise a constituent element element can include one or more elements.
It will be appreciated by those skilled in the art that information and signal can be used in a variety of different techniques and technology Any one represents.For example, throughout the data mentioned by above description, instruction, order, information, signal, bit, symbol and Chip can be represented by voltage, electric current, electromagnetic wave, magnetic field or particle, light field or particle or its any combination.
Those skilled in the art will also be appreciated that various illustrative to patrol with reference to what aspect disclosed herein described Collect any one in frame, module, processor, unit, circuit and algorithm steps and can be implemented as electronic hardware (for example, numeral Realization, simulated implementation, or both combination, it can be designed using source code or certain other technology), be incorporated to instruction Various forms of programs or design code (for convenience's sake, it can be referred to as " software " or " software mould herein Block ") or combination.In order to clearly demonstrate this interchangeability of hardware and software, above around various illustrative groups They have been carried out general description by part, frame, module, the function of circuit and step.It is implemented as such function Hardware or software, depending on the design constraint of specific application and application over the whole system.Those skilled in the art can So that for each specific application, described function is realized in a manner of flexible, but such realize that decision-making should not be by Be construed to cause disengaging scope of the present disclosure.
With reference to aspect disclosed herein and with reference to various illustrative box, module and the circuits described by Fig. 1-7 It can realize in integrated circuit (IC), access terminal or access point or be performed by above items.IC can include being set Count into perform the general processor of functionality described herein, digital signal processor (DSP), application specific integrated circuit (ASIC), Field programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components, electricity Pneumatic module, optical module, mechanical component or its any combination, and can be with executive resident in IC, outside IC or two kinds of feelings The code of condition or instruction.Box, module and circuit can include being used to be led to the various assemblies in network or in equipment The antenna and/or transceiver of letter.General processor can be microprocessor, but in alternative solution, processor can be any Conventional processor, controller, microcontroller or state machine.Processor is also implemented as the combination of computing device, for example, The combination of DSP and microprocessor, multi-microprocessor, one or more microprocessors combination DSP core, or it is any other such Configuration.The function of these modules can be realized with certain other manner such as instructed herein.In certain aspects, it is described herein Function (for example, on one or more of accompanying drawing accompanying drawing) can be specified with similar in the appended claims " unit for being used for ... " function is corresponding.
If realized with software, these functions can be stored in computer as one or more instructions or code can Read in storage.The step of method disclosed herein or algorithm can be realized in processor can perform software module, processor Executable software module may reside within computer-readable medium.Computer-readable medium includes computer-readable storage medium and led to Believe both media, the communication media includes computer program can be enable to be sent to appointing for another place from a place What medium.Storage medium can be any storage medium by computer access.Mode nonrestrictive by way of example, so Computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic Storage device or it can be used for instruct or the structure type of data stores desired program code and can be by computer Any other medium of access.In addition, any connection can be properly termed as computer-readable medium.As it is used herein, Disk and CD include compact disk (CD), laser-optical disk, CD, digital versatile disc (DVD), floppy disk and Blu-ray Disc, its The usual magnetically replicate data of middle disk, and CD then utilizes laser to optically replicate data.Combinations of the above is also included within In the range of computer-readable medium.In addition, the operation of method or algorithm can be used as a code and instruction or code and Any combinations of instruction or set are resided on machine readable media and computer-readable medium, and these media can be incorporated into In computer program product.
It should be appreciated that the certain order of step or level are the example of Sample Method in the disclosed process.Should When understanding, the certain order or level of step, are stilled remain in simultaneously during being rearranged based on design preference Scope of the present disclosure interior.Appended claim to a method gives the element of each step with sample order, and simultaneously unexpectedly Taste, which, is limited to given certain order or level.
For those skilled in the art, the various modifications to the implementation described in present disclosure will be aobvious And be clear to, and without departing from the spirit and scope in the present disclosure, can be by overall original defined herein Other implementations ought to be used for.Therefore, present disclosure is not intended to be limited to implementation shown herein, but will Meet the most wide scope consistent with the feature of appended claims and principles disclosed herein and novelty.Herein In word " exemplary " be used exclusively mean " as example, example or explanation ".Here depicted as appointing for " exemplary " What implementation is not necessarily to be construed as being preferable over other implementations or more advantageous than other implementations.
Single realization can also be combined some features described in the context of mode are implemented separately in this manual Mode is realized.On the contrary, each feature described in the context of single implementation can also be in multiple implementations It is implemented separately or is realized in any appropriate sub-portfolio.Although in addition, it can describe feature as above with some combinations To be acted and even initially be required in this way, still in some cases, the one or more from desired combination Feature removes in being combined from this, and required combination can be related to the deformation of sub-portfolio or sub-portfolio.
Similarly, although operation be describe by certain order in the accompanying drawings, this be understood not to requirement with Shown certain order is sequentially performed these operations, or performs all operations shown to realize expected result. In some cases, multitask and parallel processing are probably advantageous.In addition, each system component in above-mentioned implementation Separation is understood not to require this separation in all implementations, and it should be appreciated that described program Component and system generally can be integrated in single software product or be packaged into multiple software product.In addition, other realization sides Formula is in the range of following claims.In some cases, can be performed in a differing order in claims The action of record and still realize desired result.

Claims (54)

1. a kind of method of radio communication, including：
One or more control fields are selected to be included in frame from the control field of variable number；
Generation includes the frame of the control field of selected quantity；And
Send the frame.
2. according to the method for claim 1, wherein, each control field also includes the first field, and first field is deposited Store up the designator that the control field is included the variant of the control field and indicated.
3. according to the method for claim 2, wherein, the variant includes the high throughput (VHT) of the control field High efficiency (HE) variant of variant.
4. according to the method for claim 1, wherein, each control field also includes：
Control identifier field；And
Control information field, the control information field include the information for communicating, and the control identifier field includes using In the designator of the type of instruction described information.
5. according to the method for claim 4, wherein, the type of described information includes at least one in the following：Really Recognize, NACK, block confirmation request, block confirmation, channel quality information, modulation and encoding scheme (MCS) feedback, economize on electricity (PS) wheel Inquiry and CRC, wherein, the control field indicates at least one in the following：
Channel quality information and modulation and encoding scheme (MCS) feedback, and wherein, the control information field includes control Field, channel bit figure field, subchannel field and feedback fields, wherein, the content of the feedback fields is to be based on the letter Road/MCS indication fields, and wherein, the feedback fields include spatial flow amount field, MCS fields, multi-user/coding Field and signal to noise ratio (SNR) field,
Field and channel/MCS indication fields be present in request/response field, dialog token field, subchannel bit figure,
Economize on electricity Polling Field, and
CRC (CRC), and wherein, the control information field includes crc field.
6. according to the method for claim 1, wherein, generating the frame includes：In physical layer convergence process (PLCP) agreement The frame is generated in the physical layer header part of data cell (PPDU) frame, and wherein, the physical layer header part includes It is one or more in the following：Signal field, long training field and short training field.
7. according to the method for claim 1, wherein, generating the frame includes：Including one or more of control words The generation frame in media access control protocol data cell (A-MPDU) subframe of the polymerization of section.
8. according to the method for claim 4, wherein, control identifier field instruction buffer state (BS) request or BS is reported, and wherein, the control information field includes one or more subfields, and one or more of subfields include Report on buffer status information or the request for buffer status information.
9. according to the method for claim 8, wherein, the control information field includes service quality (QoS) control field, And wherein, the QoS control fields include：For indicating that BS polls are every TID or full TID task identifiers (TID) Field, transmission opportunity field and queue size field.
10. according to the method for claim 4, wherein, the control identifier field instruction triggers information, and wherein, The control information field includes triggering information field.
11. according to the method for claim 10, wherein, it is described triggering information field indicate for station subchannel information or Person indicates compressed or uncompressed up-link medium access control (MAC) form.
12. according to the method for claim 1, wherein, the control field of selected quantity includes being addressed to the first equipment The control field of one or more first and be addressed to the control field of one or more second of the second equipment.
13. according to the method for claim 1, wherein, controlled on the time in code, frequency or to one or more of first Field processed and one or more of second control fields are multiplexed.
14. according to the method for claim 1, wherein, sending the frame includes：Converged using uplink multiuser physical layer Collecting process (PLCP) protocol Data Unit (PPDU) frame sends the frame.
15. according to the method for claim 1, wherein, sending the frame includes：Converged using downlink multiuser physical layer Collecting process (PLCP) protocol Data Unit (PPDU) frame sends the frame.
16. according to the method for claim 4, wherein, the control identifier field indicates up-link (UL) multi-user (MU) response scheduling, and wherein, the control information field includes being used to send the UL physical layer convergences for including validating that information The schedule information of process (PLCP) protocol Data Unit (PPDU) frame.
17. according to the method for claim 16, wherein, the control information field includes UL PPDU length fields and money Source allocation field, the UL PPDU length fields are used for the length for indicating the UL PPDU frames, and the resource allocation field is used It is allocated for sending the resource unit of the UL PPDU frames in instruction.
18. according to the method for claim 1, wherein, the frame also include follow one or more of control fields it Filling field afterwards so that the length of one or more of control fields meets that length requirement or border require.
19. according to the method for claim 18, wherein, the length requirement is 30 bits, and the border requires It is the multiple of eight bit byte.
20. according to the method for claim 1, wherein, the frame includes multistation block and confirms (BA) frame.
21. according to the method for claim 1, wherein, the frame includes trigger frame.
22. according to the method for claim 21, wherein, the frame includes the value of AID fields, the AID fields are used to refer to Show the presence for following one or more control fields after the described value of the AID fields.
23. according to the method for claim 22, wherein, the described value of the AID fields is 2047.
24. according to the method for claim 1, wherein, the frame is also included per associated identifiers (AID) task identifier (TID) information field, the presence of the control field for being used to indicate selected quantity per AID TID informations field.
25. according to the method for claim 24, wherein, every AID TID informations field includes type field, the class Type-word section is used for the byte quantity for indicating the control field for selected quantity.
26. according to the method for claim 24, wherein, every AID TID informations field includes the TID subfields Value, the TID subfields are used for indicate the STA that the AID subfields per AID TID information fields are identified one or more The presence of individual control field.
27. a kind of equipment for being communicated in the wireless network, the equipment includes：
Processor, the processor are configured as selecting one or more control fields from the control field of variable number to wrap Include in frame, the processor is additionally configured to the frame that generation includes the control field of selected quantity；And
Emitter, the emitter are configured as sending the frame.
28. equipment according to claim 27, wherein, each control field also includes the first field, first field Store the designator that the control field is included the variant of the control field and indicated.
29. equipment according to claim 28, wherein, the variant includes the high throughput of the control field (VHT) high efficiency (HE) variant of variant.
30. equipment according to claim 27, wherein, each control field also includes：
Control identifier field；And
Control information field, the control information field include the information for communicating, and the control identifier field includes using In the designator of the type of instruction described information.
31. equipment according to claim 30, wherein, the type of described information includes at least one in the following： Confirmation, NACK, block confirmation request, block confirmation, channel quality information, modulation and encoding scheme (MCS) feedback, economize on electricity (PS) Poll and CRC, wherein, the control field indicates at least one in the following：
Channel quality information and modulation and encoding scheme (MCS) feedback, and wherein, the control information field includes control Field, channel bit figure field, subchannel field and feedback fields, wherein, the content of the feedback fields is to be based on the letter Road/MCS indication fields, and wherein, the feedback fields include spatial flow amount field, MCS fields, multi-user/coding Field and signal to noise ratio (SNR) field,
Field and channel/MCS indication fields be present in request/response field, dialog token field, subchannel bit figure,
Economize on electricity Polling Field, and
CRC (CRC), and wherein, the control information field includes crc field.
32. equipment according to claim 27, wherein, the processor is additionally configured to：In physical layer convergence process (PLCP) frame is generated in the physical layer header part of protocol Data Unit (PPDU) frame, and wherein, the physical layer report Head portion includes one or more in the following：Signal field, long training field and short training field.
33. equipment according to claim 27, wherein, the processor is additionally configured to：Comprising one or more The generation frame in media access control protocol data cell (A-MPDU) subframe of the polymerization of individual control field.
34. equipment according to claim 30, wherein, control identifier field instruction buffer state (BS) request Or BS reports, and wherein, the control information field includes one or more subfields, one or more of subfield bags Containing the report on buffer status information or the request for buffer status information.
35. equipment according to claim 34, wherein, the control information field includes service quality (QoS) control word Section, and wherein, the QoS control fields include：For indicating that BS polls are every TID or full TID task identifier (TID) field, transmission opportunity field and queue size field.
36. equipment according to claim 30, wherein, the control identifier field instruction triggering information, and wherein, The control information field includes triggering information field.
37. equipment according to claim 36, wherein, the triggering information field indicate for station subchannel information or Person indicates compressed or uncompressed up-link medium access control (MAC) form.
38. equipment according to claim 27, wherein, the control field of selected quantity includes being addressed to the first equipment The control field of one or more first and be addressed to the control field of one or more second of the second equipment.
39. equipment according to claim 27, wherein, code, frequency or on the time to one or more of first Control field and one or more of second control fields are multiplexed.
40. equipment according to claim 27, wherein, sending the frame includes：Use uplink multiuser physical layer Convergence process (PLCP) protocol Data Unit (PPDU) frame sends the frame.
41. equipment according to claim 27, wherein, sending the frame includes：Use downlink multiuser physical layer Convergence process (PLCP) protocol Data Unit (PPDU) frame sends the frame.
42. equipment according to claim 30, wherein, the control identifier field indicates up-link (UL) multi-user (MU) response scheduling, and wherein, the control information field includes being used to send the UL physical layer convergences for including validating that information The schedule information of process (PLCP) protocol Data Unit (PPDU) frame.
43. equipment according to claim 42, wherein, the control information field includes UL PPDU length fields and money Source allocation field, the UL PPDU length fields are used for the length for indicating the UL PPDU frames, and the resource allocation field is used It is allocated for sending the resource unit of the UL PPDU frames in instruction.
44. equipment according to claim 27, wherein, the frame also include following one or more of control fields it Filling field afterwards so that the length of one or more of control fields meets that length requirement or border require.
45. equipment according to claim 44, wherein, the length requirement is 30 bits, and the border requires It is the multiple of eight bit byte.
46. equipment according to claim 27, wherein, the frame includes multistation block and confirms (BA) frame.
47. equipment according to claim 27, wherein, the frame includes trigger frame.
48. equipment according to claim 47, wherein, the frame includes the value of AID fields, and the AID fields are used to refer to Show the presence for following one or more control fields after the described value of the AID fields.
49. equipment according to claim 48, wherein, the described value of the AID fields is 2047.
50. equipment according to claim 27, wherein, the frame is also included per associated identifiers (AID) task identifier (TID) information field, the presence of the control field for being used to indicate selected quantity per AID TID informations field.
51. equipment according to claim 50, wherein, it is described to include type field, the class per AID TID informations field Type-word section is used for the byte quantity for indicating the control field for selected quantity.
52. equipment according to claim 50, wherein, it is described to include the TID subfields per AID TID informations field Value, the TID subfields are used for indicate the STA that the AID subfields per AID TID information fields are identified one or more The presence of individual control field.
53. a kind of equipment for being communicated in the wireless network, the equipment includes：
For selecting one or more control fields from the control field of variable number to be included in the unit in frame；
For the unit for the frame for generating the control field for including selected quantity, each control field includes control field End, end to the control field of selected quantity of the end storage of the control field or exist in the frame The designator that another control field is indicated；And
For sending the unit of the frame.
54. a kind of computer-readable recording medium including instructing, the instruction make it that computing device is a kind of when executed The method of radio communication, methods described include：
One or more control fields are selected to be included in frame from the control field of variable number；
Generation includes the frame of the control field of selected quantity, and each control field includes the end of control field, institute The end for stating control field stores the end to the control field of selected quantity or another control in the frame be present The designator that field processed is indicated；And
Send the frame.
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US15/181,364 US10135957B2 (en) 2015-06-15 2016-06-13 Methods and apparatus for communicating high efficiency control information
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